Note 2 - Basis of Presentation and Significant Accounting Policies (Details Textual) $ in Thousands	3 Months Ended
Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)
Advance Rent	$ 510		$ 390
Income Tax Expense (Benefit)	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Percent	0.00%	0.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%
Customer Concentration Risk [Member] \| Revenue Benchmark [Member]
Number of Major Tenants	0	0
Prepaid Expenses and Other Assets [Member]
Deferred Rent Asset, Net, Current	$ 834		$ 594
Rental [Member]
Operating Lease, Variable Lease Income	325	$ 114
Fuel Delivery [Member]
Operating Lease, Variable Lease Income	$ 426	$ 266
Consolidated Subsidiaries [Member] \| Sky Harbour LLC [Member]
Subsidiary, Ownership Percentage, Parent	100.00%

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